Eccentric ball-bearing reciprocating device.



F. PRINZ.l I ECCENTRICBALL BEARINURECIPROCATING DEVICE.

APPLICATION HLED 1AN. 21.1915. Patented Nov. 30, 1915 'UNiTii-D sTATEs PATENT OFFICE.

j FAiJsTIN PRINZ, or MILWAUKEE, WISCONSIN.

ECGENTRIC BALL-BEARING REIPROCATING YDIELVIGE.k

T all whom/.t may concern.'

-Bev it-known tha-tI, FAUsTIN lPRINZ, a

State of Visconsin, have invented certain new and `useful Improvements 1n Eccentric Ball-Bearing Reciprocating Devices; and I' do declare thefollowing to be a full, clear, and exactv description of the invention, such `as will enable others skilled in the art to which it appertains -to make and usel the same,l reference being had to the \accom.

panying drawings, and to the letters and figures' of reference marked thereon, which form a part of thisspecitication. Mylinvention relates to shaking screens for grain and like separators, 'and particularly to means for reciprocating the shaker or's'creen.

Ith'as for p proved eccentric and ball-bearing box for imparti-ng the reciprocating motion to the shaker or screen so that a smooth, easy and regular movement ofthe screen is obtained and wherein both the ball-bearings and the eccentric are' clamped in place by means preventing the displacement of either the eccentric or ball-bearings. l It also consists in features of construction in various parts of the eccentric ball-bear- --ing retaining b'oX having functions hereinafter mentioned for the parts.

To the accomplishment of the foregoing and such other objects as may be made hereinafter to appear, the invention consists in the features hereinafter particularly described and then sought to be clearly defined by the, claims, reference being had to the'A accompanying drawing forming a part hereof, and in which- Figure 1 is a side elevation-of the eccentric box with one' side removedv and showing the pusher-armgFig. 2 is a horizontal section through the eccentric box and pusherarin. Fig. 3 is a side view of the device, onv

a smaller scale thanA the other figures.

- In the drawing, the numeral 1 deslgnates 4a strap forming one part of the eccentric- 'box and having a screen pusher-arm 2 formed with a hook 3 with which will engage one end of a rod extending to the other end of the shaker or screen where it is pi'ovided with a spring and nut and connected with the screen but which details are-not shown as the)Y do not constitute the present invention.

.lubricant for the ball-bearings; and

-forinedwith cavities 19 to receive a suita packing, and plates 2O secured to the cheelas Specification of Letters Patent. Patented NGV-:530, 19151, Appiicaiion' sied January ai, 1915. seriai NQ. 3,523. I i' These constitute the sides of the box and forman interior hollow space orchamher 8 1n which 1s positioned theconcentric rings 9 and .l0 constituting the annular rim-way or race 'for the balls 11 interposed between the ltworings; the ri-ng 9 having a tapered nterior and formed on its exterior with cavities l2 for the balls, and the'ring'lO having ,l

a concave interior face againstwhich the .ballsbean the exterior of the ring bearing' against the interior Vface of the strapl.

The. numeral 13 designates a split eccen- 1 tric which encircles the rotatable drive shaft 14, and around theeccentric is a sleeve 'ts object to provide an im 15 which has a tapered or beveled exterior bearing against the tapered interior'of the race-ring 9, and formed with a threaded eiid 16 upon which: is screwed a nut 17. By screwing up thisv nut the 4tapered sleeve is caused to wedgev the race-rings in place and at the same time clamp the eccentric to 'its shaft so that the tapered sleeve and its nut perform the two-fold function mentioned and hold the eccentric 4and the race-rings and their balls securely in place and proper position for the efficient reciprocation of the shaker or screen through the connection of the strap pusher-arm therewith.

vTo 'insure the eccentric being correctly mounted yor adjusted on its shaft for the proper reciprocation ofthe screen, a pin 18 enters a recess or socket in the drive shaft and into a corresponding socket in the eccentric thus insuring the proper positioning of the eccentric and holding it in such position while clamping the parts in place bv `'the tapered' sleeve and its nut.

The chamber 8 serves to receive a suital` forming stuffing boxes to keep the lubricant from working its way out of the box. the iiiner ends of the side plates or cheeks 6 by bolts 21 and' nuts 22 serve as covers if keep the packing in the cavities.

The construction described constitutesA very efficient ball-bearing eccentric Vfor reciprocating the shakers or sieves of a sepai rator, easy and smooth in operation and possessingthe advantages of comparatively so ner face of the strap 1 as shown in Fig 2.

y lubricant :from exposure.

Een? parts and their. easy assemblage; ay secure clamping and holding of the eccentric together with the balls and their race-rings in place, and protection of them and their Having described my invention and set its merits, What I claim is:

An eccentric ball-bearing,reciprocating fm-vice' comprising a drive-shaft, a split eccntric mounted on the shaft, a box encircling the eccentric, a balhbearing race ring mounted within the box, one face of the race ring beingrtapered, `a sleeve encircling the eccentric and having a tapering exterior eni, ging the tapered face of the ball-bearing f'a ring, and a nut threaded onto the sleeve r clamping both the eccentric and the ballnearing race ring in place.

An eccentric balhbearing reciprocating le comprising a drive-shaft, a split ecic vmounted on the shaft, a strap Wit-h a weer transmitting arm extending there i' ai, cheeks attachedy to opposite sides of the ,strap and having inwardly extending ,flanges next to the inner face of the strap and forming avchamber between the strap eccentric, ball-bearing race rings Within chamber, one or which. bears against the in '1er face of the strap and the other of if cli is orinediwith a tapered inner face, a e a encircling the eccentric and having a mered outer face bearing against the ta- .tace or" the adjacent race-ring, and a t threaded onto the sleeve to clamp the ntric and the race-rings in place.

.ein eccentric ball-bearing reciprocating device comprising diivevv-,sha'ftra 'split eccentric mountedwf; h ft, a box encircling the eccentric .and ,Y chamber for a lubricant, aball-bearing race ringr mounted within said chamber, one face of the race ring being tapered, a sleeve encircling the eccentric and having a tapering exterior engaging the tapered face of the ball-bearing race ring, a nut threaded onto the sleevefor clamping both' 'the eccentric and the ball-bearing race ring in place, the sides of the box' next to the eccentric being formed with packing receiving cavities, and replaceable covers for closing said cavities and permitting access thereto.

4. An eccentric ball-bearing' reciprocating t device comprising a drive-shaft, a split ring mounted on the shaft, a AboX encircling the eccentric, a ball-bearing race ring mounted Within the boX, one face Iof the race ring being tapered, a sleeve encircling the eccentric and having a tapering exterior engaging the -tapered face of the ball-bearing race ring, a

nut threaded onto the sleeve for clamping both the eccentric and the ball -bearing race ring in place, and a pinv fitting in correspending 'sockets in the shaft and eccentric to insure proper relation between the eccentric and the other parts.

In testimonv whereof I ailix my signature in presence oi' two Witnesses.

M. B. WELLS.

-having an interior' 

